package servlet;

import service.UserService;
import service.impl.UserServiceImpl;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebServlet(urlPatterns = "/delete")
public class DeleteUserServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        doPost(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        //编码处理 解决汉字传递乱码
        req.setCharacterEncoding("utf-8");
        //拿到页面传递的参数
        String sid = req.getParameter("id");
        Integer id= Integer.parseInt(sid);
        UserService userService = new UserServiceImpl();
        //根据id查询用户信息
        int result=userService.deleteUserById(id);
        if(result>0)
            req.getRequestDispatcher("/user").forward(req,resp);
        else
            resp.sendRedirect("/error.jsp");
    }
}
